RetroZilla/xpinstall/wizard/windows/setup/version.c

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2015-10-21 05:03:22 +02:00
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Communicator.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corp.
* Portions created by the Initial Developer are Copyright (C) 2003
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Sean Su <ssu@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "setup.h"
#include "windows.h"
#include "extern.h"
#include "extra.h"
#include "version.h"
BOOL GetFileVersion(LPSTR szFile, verBlock *vbVersion)
{
UINT uLen;
UINT dwLen;
BOOL bRv;
DWORD dwHandle;
LPVOID lpData;
LPVOID lpBuffer;
VS_FIXEDFILEINFO *lpBuffer2;
vbVersion->ullMajor = 0;
vbVersion->ullMinor = 0;
vbVersion->ullRelease = 0;
vbVersion->ullBuild = 0;
if(FileExists(szFile))
{
bRv = TRUE;
dwLen = GetFileVersionInfoSize(szFile, &dwHandle);
lpData = (LPVOID)malloc(sizeof(long)*dwLen);
uLen = 0;
if(GetFileVersionInfo(szFile, dwHandle, dwLen, lpData) != 0)
{
if(VerQueryValue(lpData, "\\", &lpBuffer, &uLen) != 0)
{
lpBuffer2 = (VS_FIXEDFILEINFO *)lpBuffer;
vbVersion->ullMajor = HIWORD(lpBuffer2->dwFileVersionMS);
vbVersion->ullMinor = LOWORD(lpBuffer2->dwFileVersionMS);
vbVersion->ullRelease = HIWORD(lpBuffer2->dwFileVersionLS);
vbVersion->ullBuild = LOWORD(lpBuffer2->dwFileVersionLS);
}
}
free(lpData);
}
else
/* File does not exist */
bRv = FALSE;
return(bRv);
}
void TranslateVersionStr(LPSTR szVersion, verBlock *vbVersion)
{
LPSTR szNum1 = NULL;
LPSTR szNum2 = NULL;
LPSTR szNum3 = NULL;
LPSTR szNum4 = NULL;
szNum1 = strtok(szVersion, ".");
szNum2 = strtok(NULL, ".");
szNum3 = strtok(NULL, ".");
szNum4 = strtok(NULL, ".");
vbVersion->ullMajor = _atoi64(szNum1);
vbVersion->ullMinor = _atoi64(szNum2);
vbVersion->ullRelease = _atoi64(szNum3);
vbVersion->ullBuild = _atoi64(szNum4);
}
int CompareVersion(verBlock vbVersionOld, verBlock vbVersionNew)
{
if(vbVersionOld.ullMajor > vbVersionNew.ullMajor)
return(4);
else if(vbVersionOld.ullMajor < vbVersionNew.ullMajor)
return(-4);
if(vbVersionOld.ullMinor > vbVersionNew.ullMinor)
return(3);
else if(vbVersionOld.ullMinor < vbVersionNew.ullMinor)
return(-3);
if(vbVersionOld.ullRelease > vbVersionNew.ullRelease)
return(2);
else if(vbVersionOld.ullRelease < vbVersionNew.ullRelease)
return(-2);
if(vbVersionOld.ullBuild > vbVersionNew.ullBuild)
return(1);
else if(vbVersionOld.ullBuild < vbVersionNew.ullBuild)
return(-1);
/* the versions are all the same */
return(0);
}